2026 Audi Q4 55 e-tron quattro: home charging cost in Colorado

At Colorado's residential electricity rate of 16.65¢/kWh, a 2026 Audi Q4 55 e-tron quattro (rated 34.6 kWh per 100 miles by the EPA) costs $5.77 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home is much cheaper than gas here: 64% less than gas per mile, here specifically.

Annual cost, at 15 thousands miles a year

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 Audi Q4 55 e-tron quattro charged at home in Colorado costs about $865/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,538 a year.

Cost of a full charge

A 2026 Audi Q4 55 e-tron quattro needs roughly 86.9 kWh to reach its EPA-rated 251-mile range, which runs about $14.47 at 16.65¢/kWh in Colorado.

Where this ranks

This combination ranks 8,272 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Audi Q4 55 e-tron quattro alone ranks 140 of 400 models for efficiency; Colorado alone ranks 30 of 51 states for electricity price.

Getting set up to charge a 2026 Audi Q4 55 e-tron quattro at home

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Line up a few Colorado electrician quotes for Level 2 install before you commit either way.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 Audi Q4 55 e-tron quattro's cost in Colorado. Curious how Colorado's 16.65¢/kWh compares? The guide to charging cost by state ranks every state side by side.